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ICRabbit-1673 avatar image
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ICRabbit-1673 asked ICRabbit-1673 commented

How can I make a self-signed certificate?

I have made a self-sign certificate through the Encrypt file System with ECC 521 bit. But only found that this certificate made by the file system is only used to encrypt files and cannot be used to sign PDF.
How can I make a self-sign certificate with ECC 521 bit which can use to every certificate purpose?
PS:I have knew that the Office or Adobe Acrobat can make a certificate but only with RSA 2048.This is not what I want.

windows-serverwindows-11office-itpro
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TKujala answered ICRabbit-1673 commented
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I entered the website you gave.I found that it only support RSA.it is not what I want.
But I wonder if I could change the certificate purpose which made by encrypt file system.If it can be changed, it would also be acceptable

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KapilArya avatar image
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KapilArya answered ICRabbit-1673 commented

Hello,

See if this guide helps you anyway:

https://www.kapilarya.com/generate-self-signed-ssl-certificate-in-windows-10-server

Let us know if this helps!

Note: Included link in this reply refers to blog post by a trusted Microsoft MVP.

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It helps. But I still have some problems.
First, I followed the example to make certificate that only for Client Authentication not for PDF signature even all purpose. How can I make a certificate for all purpose? The description of parameters seem not mentioned.
next, the Signature hashing algorithm seems only SHA256 bit, but I saw that the file encrypting system can make a SHA512 bit certificate. Could I make the same?

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